CN102285325A - Active safe headrest device of automobile chair - Google Patents
Active safe headrest device of automobile chair Download PDFInfo
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- CN102285325A CN102285325A CN 201110284488 CN201110284488A CN102285325A CN 102285325 A CN102285325 A CN 102285325A CN 201110284488 CN201110284488 CN 201110284488 CN 201110284488 A CN201110284488 A CN 201110284488A CN 102285325 A CN102285325 A CN 102285325A
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Abstract
The invention discloses an active safe headrest device of an automobile chair, which comprises a headrest assembly, a linkage assembly and a trigger assembly, wherein the headrest assembly comprises a main headrest panel, an auxiliary headrest panel, a support connecting rod 1, a support connecting rod 2, a connecting rod sleeve 1, a connecting rod sleeve 2, a fixed slot 1, a fixed slot 2, a sleeve connecting plate, a swing arm 2, a butterfly spring self-locking hinge and a swing arm 1, wherein the main headrest panel and the auxiliary headrest panel are connected through the butterfly spring self-locking hinge, the upper end of the support connecting rod I and the upper end of the support connecting rod 2 are fixedly connected with the main headrest panel, the lower end of the support connecting rod I and the lower end of the support connecting rod 2 are respectively inserted into the connecting rod sleeve 1 and the connecting rod sleeve 2, the fixed slot 1 and the fixed slot 2 are fixed at the middle of the support connecting rod 1 and the middle of the support connecting rod 2, the hook end of the swing arm 1 and the hook end of the swing arm 2 are respectively matched with the swing arm fastener of the fixed slot 1 and the swing arm fastener of the fixed slot 2, the other end of the swing arm 1 and the other end of the swing arm 2 are fixedly connected with the auxiliary headrest panel, and the connecting rod sleeve 1 and the connecting rod sleeve 2 which are fixedly connected by the sleeve connecting plate are vertically arranged at a chair backrest in a sliding way.
Description
Technical field
The present invention relates to the head rest device on a kind of automotive seat, more particularly, the present invention relates to a kind of front-row seats of vehicle active safety head rest device.
Background technology
Car seat headrest is a kind of in order to improve traveling comfort and safety when guaranteeing motroist take and the device that be provided with of motroist when taking.Car seat headrest is except can be for the motroist increases the comfort, and its radical function is to provide a head to rely on and spacing backward defencive function for the passenger.
Bump at automobile, especially during rear-end impact, occupant's upper body moves quickly into back of seat, and occupant's head moves to headrest thereupon apace.At this moment, produce difference between the amount of movement of occupant's upper body and the amount of movement of occupant's head, be easy to cause damage neck.
Initiatively headrest is a kind of the most common, the direct and actv. device that reduces the neck injury risk at present, it can make the headrest and the distance of occupant's head reduce in a few tens of milliseconds after rear-end impact takes place, thereby or before rear-end impact takes place, predict danger and make a response, thereby reduce the risk of neck injury.
But since occupant's height than big-difference, and the continuous increase of height per capita, the area of contact that increases headrest is the most direct solution.Yet, increase the size that tradition is rested the head on, may bring many inconveniences, for example, influence back row occupant's the visual field; In the process of reversing, influence chaufeur to observation of rear obstacle or the like.
Simultaneously, the height aspect of relevant headrest, state compulsory standard GB11550-1995 " car seat headrest performance requriements and test method " regulation: measure the length of the top of headrest to H point (dummy's buttocks center) along being parallel to the trunk datum line, driver's seat is more than the 700mm, and other seats are more than the 650mm.And Europe (ECE R25) regulation, front-seat fixing headrest minimum altitude is 800mm, back row's minimum altitude is 750mm.And nearest researchist proposes, the height of ECE R25 defined, and the still raising that need continue could be satisfied most of people's demand.
Summary of the invention
Technical matters to be solved by this invention is to have overcome the problem that prior art exists, and a kind of automotive seat active safety head rest device is provided.
For solving the problems of the technologies described above, the present invention adopts following technical scheme to realize: described automotive seat active safety head rest device comprises headrest assembly, interlock assembly and triggers assembly.Described headrest assembly comprises headrest main panel, headrest subpanel, No. 1 rack rod, No. 2 Swing Arms, No. 1 link rod sleeve, No. 2 link rod sleeves, No. 1 hold down groove, sleeve connecting plate, butterfly spring Self-locking hinge, No. 2 hold down grooves, No. 1 Swing Arm and No. 2 rack rods.
The headrest main panel is connected by butterfly spring Self-locking hinge with the headrest subpanel, the headrest main panel is captiveed joint with the upper end of No. 2 rack rods with No. 1 rack rod, insert in No. 1 link rod sleeve and No. 2 link rod sleeves lower end of No. 1 rack rod and No. 2 rack rods, and No. 1 rack rod and No. 1 link rod sleeve and No. 2 rack rods and No. 2 link rod sleeves are all and closely cooperate.No. 1 hold down groove and No. 2 hold down grooves are sleeved on the straight line pole of No. 1 rack rod and No. 2 rack rod lower ends and are in the same horizontal surface, between the lower end straight line pole of No. 1 rack rod and No. 2 rack rods and No. 1 hold down groove and No. 2 hold down grooves for captiveing joint.Swing Arm snap-fit on the hook end of No. 1 Swing Arm and No. 2 Swing Arms and No. 1 hold down groove and No. 2 hold down grooves is in the same place, and the other end is captiveed joint with the headrest subpanel.No. 1 link rod sleeve and No. 2 link rod sleeves are installed in the upper end of back of seat vertically, are captiveed joint by the sleeve connecting plate between No. 1 link rod sleeve and No. 2 link rod sleeves.
No. 1 rack rod described in the technical scheme is the bar class formation spare that the identical employing corrosion-resistant steel of structure is made with No. 2 rack rods.No. 1 rack rod and No. 2 rack rods all are made up of upper end straight line pole, lower end straight line pole and two sections bows.The upper end straight line pole of No. 1 rack rod and No. 2 rack rods and lower end straight line pole are the straight line pole that is parallel to each other, and adopt between upper end straight line pole and the lower end straight line pole that two sections bows are slick and sly to be connected, and the length of upper end straight line pole is less than the length of lower end straight line pole; Described No. 1 Swing Arm is the identical plate structure spare of structure with No. 2 Swing Arms.One end of No. 1 Swing Arm and No. 2 Swing Arms is and No. 1 hold down groove and No. 2 equipped hook formation spares of hold down groove, and the other end of No. 1 Swing Arm and No. 2 Swing Arms is the T shape that is equipped with the subpanel of the resting the head on member that hardens.Hook formation spare hardens to captive joint between the member with T shape and is integral; Described No. 1 hold down groove is the identical part of structure with No. 2 hold down grooves, and No. 1 hold down groove and No. 2 hold down grooves all are made up of 3 block plates and Swing Arm buckle.3 block plates connect into the framing member of a font, and the left side steel plate is identical with the right side steel plate structure, with middle steel plate vertical also captive joint be integral.The Swing Arm snap fit is between left side steel plate and right side steel plate, and Swing Arm buckle central axis is parallel with middle steel plate.Distance between Swing Arm buckle and the middle steel plate is greater than the diameter value of No. 1 rack rod or No. 2 rack rods; Described headrest main panel all is made up of exoperidium, frame-type skeleton and isocyanurate foam weighting material with the headrest subpanel.The outside that exoperidium is wrapped in frame-type skeleton and isocyanurate foam weighting material becomes and has certain elastomeric spatial structure part.The headrest main panel is connected by butterfly spring Self-locking hinge with the frame-type skeleton of headrest in the subpanel, and promptly rest the head on main panel and frame-type skeleton employing screw retention in the headrest subpanel are connected on adjacent in the butterfly spring Self-locking hinge No. 1 hinge plate and No. 2 hinge plates; Described interlock assembly comprises No. 1 ratchet, No. 2 ratchets, No. 1 cylinder boss, No. 2 cylinder boss and small boss.No. 1 ratchet and No. 2 ratchets are installed on the seat back-rest framework to being rotationally connected by No. 1 fixed orifice and No. 2 fixed orifices, and for being connected with a joggle, No. 1 ratchet becomes 15 ° of angles with No. 2 ratchet coplanes and with vertical plane surface between No. 1 ratchet and No. 2 ratchets.No. 1 cylinder boss and No. 2 cylinder boss are installed in the outside of No. 1 fixed orifice and No. 2 fixed orifices, and the identical rectangular through hole of 2 structures on the sleeve connecting plate in No. 1 cylinder boss and No. 2 cylinder boss and the headrest assembly is for rotating and sliding block joint.Small boss is installed in the inboard of No. 2 ratchet engaged teeth, and the upper end of small boss and steel rope is rotationally connected, the lower end of steel rope by steel wire buckle with trigger swing arm connecting rod in the assembly for being rotationally connected.
A kind of automotive seat active safety head rest device of electromechanical, it comprises headrest assembly, No. 1 ratchet, No. 2 cylinder boss, motor, coupler, electronic ratchet and No. 1 cylinder boss.
Motor is fixed on the backrest of seat, and the mouth of motor is captiveed joint with the coupler input end, and the coupler mouth is connected with No. 2 fixed orifice running-fits on the electronic ratchet.Between electronic ratchet and No. 1 ratchet for being connected with a joggle, No. 2 cylinder boss and No. 1 cylinder boss are installed in the outside of No. 2 fixed orifices and No. 1 fixed orifice, and the identical rectangular through hole of 2 structures on the sleeve connecting plate in No. 2 cylinder boss and No. 1 cylinder boss and the headrest assembly is for rotating and sliding block joint.
Compared with prior art the invention has the beneficial effects as follows:
1. the size verification of automotive seat active safety headrest
Height to headrest among the state compulsory standard GB11550-1995 " car seat headrest performance requriements and test method " proposes: measure the length of ordering to R in the top of headrest along being parallel to the trunk datum line, driver's seat is more than the 700mm, and other seats are more than the 650mm.And Europe (ECE R25) regulation, front-seat fixing headrest minimum altitude is 800mm, back row's minimum altitude is 750mm.And nearest studies show that, the height of ECE R25 defined, the still raising that need continue could be satisfied most of people's demand.
Length and width, the thick size of chair headrest commonly used are respectively 240 * 155 * 120 (mm of unit).The active safety headrest, main pillow face is of a size of 240 * 150 * 110, and secondary pillow face is of a size of 240 * 140 * 110 (mm of unit).After the active safety headrest launched fully, it was of a size of 240 * 290 * 110, has greatly remedied the deficiency of chair headrest insufficient height commonly used.
2. automotive seat active safety headrest safeguard function checking
Neck injury criterion NIC is present the most widely used a kind of neck injury critical for the evaluation, it also is researcher's critical for the evaluation of convincing the most, it has passed through many-sided checkings such as volunteer's test, mechanical dummy (as rear-end impact dummy BioRID II) test and computer simulation experiment, has proved absolutely the accuracy of its evaluation neck injury.Usually, the researcher utilizes maxim NICmax in the preceding 150ms of NIC behind rear-end impact to estimate the degree of neck injury.
Consult Figure 13, most cervical injuries occurs in velocity variable and arrives within the scope of 20km/h at 10km/h, and relevant acceleration approximately is 5g.Acceleration/accel can not injure usually less than 2.5g's.Therefore, the rear-end impact accelerating curve of selecting for use as shown in FIG., velocity variable is 18km/h, acceleration peak value is 9.0g, time length is 90ms, this curve satisfies the requirement in U.S. FMVSS 202 dynamic test intervals.
Consult Figure 14, analyze through rear-end collision Collision test analogue simulation, under the car seat headrest commonly used, occupant's neck injury criterion NIC maxim is 76.1m
2/ s
2, should novel active safety headrest when using, and active safety rests the head on when launching fully, and neck injury criterion NIC is reduced to 51.5m
2/ s
2It is about 30% that NICmax has numerically reduced, and promptly in the rear-end impact process, the active safety headrest can reduce by occupant's cervical injuries of 30%.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing:
The axonometric projection graph that structure was formed when Fig. 1 was an automotive seat active safety head rest device mode of operation of the present invention;
Fig. 2-a is the axonometric projection graph of the headrest assembly in the automotive seat active safety head rest device of the present invention when seeing from the side;
Fig. 2-b is the axonometric projection graph of headrest assembly when the front is seen in the automotive seat active safety head rest device of the present invention;
Fig. 3 is the front view of automotive seat active safety head rest device medium-height trestle connecting rod of the present invention;
Fig. 4 is the front view of Swing Arm in the automotive seat active safety head rest device of the present invention;
Fig. 5 is the axonometric projection graph of No. 1 hold down groove in the automotive seat active safety head rest device of the present invention;
Fig. 6-a is the axonometric projection graph that is installed in the butterfly spring Self-locking hinge mode of operation on headrest main panel and the headrest subpanel that is adopted in the automotive seat active safety head rest device of the present invention;
Fig. 6-b is the front view that the butterfly spring Self-locking hinge structure that adopted in the automotive seat active safety head rest device of the present invention is formed;
Fig. 7-a is that the triggering supporting structure that triggers assembly in the automotive seat active safety head rest device of the present invention is formed and annexation breakdown axonometric projection graph;
Fig. 7-b triggers the axonometric projection graph that assembly structure is formed in the automotive seat active safety head rest device of the present invention;
Fig. 8-a is the axonometric projection graph of headrest assembly and interlock assembly annexation in the automotive seat active safety head rest device of the present invention;
Fig. 8-b is the axonometric projection graph that triggers assembly and interlock assembly annexation in the automotive seat active safety head rest device of the present invention;
Fig. 9-a is the axonometric projection graph of automotive seat active safety head rest device initial condition of the present invention;
Fig. 9-b is the axonometric projection graph of automotive seat active safety head rest device transition condition of the present invention;
Fig. 9-c is the axonometric projection graph of automotive seat active safety head rest device mode of operation of the present invention;
Figure 10 is the initiatively motor in the headrest and the axonometric projection graph of electronic ratchet annexation in the automotive seat active safety head rest device of the present invention;
Figure 11 is the schematic block diagram of automotive seat active safety head rest device structure composition of the present invention and principle of work;
Figure 12 is the control flow chart of automotive seat active safety head rest device of the present invention;
Figure 13 is that to select velocity variable for use be that 18km/h, acceleration peak value are that 9.0g and time length are the accelerating curve of the rear-end impact of 90ms;
Figure 14 analyzes under the resulting car seat headrest commonly used the peaked curve of reflection occupant neck injury criterion NIC when using automotive seat active safety head rest device of the present invention through rear-end collision Collision test analogue simulation;
Among the figure: 1. the assembly of resting the head on, 2. the interlock assembly 3. triggers assembly, 4. the headrest main panel, 5. headrest subpanel, No. 6.1 rack rods, No. 7.2 Swing Arms, No. 8.1 link rod sleeves, 9.2 number link rod sleeve, No. 10.1 hold down grooves, 11. sleeve connecting plates, 12. butterfly spring Self-locking hinges, 13. the trigger mechanism connecting portion, 14. slide rails, 15. connecting rod covers, 16. slide-bar, 17. swing arms, 18. swing arm connecting rods, 19. the trigger board support arm, 20. trigger mechanism entablatrances, 21. trigger panel, 22.1 number ratchet, No. 23.2 cylinder boss, 24. small boss, 25.2 number fixed orifice, 26. steel ropes, 27. steel wire buckles, 28. motor, 29. coupler, 30. electronic ratchets, 31.2 number hold down groove, No. 32.1 Swing Arms, No. 33.2 rack rods, 34.1 number fixed orifice, No. 36.2 ratchets, No. 37.1 cylinder boss, 38. the Swing Arm buckle, No. 39.1 hinge plates, No. 40.2 hinge plates, 41.3 number hinge plate, No. 42.4 hinge plates, No. 43.1 hinge plate axles, 44.2 number hinge plate axle, No. 45.3 hinge plate axles, No. 46.4 hinge plate axles.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is explained in detail:
Automotive seat active safety head rest device of the present invention is intended to when automobile generation rear-end impact, make occupant's head at short as far as possible time contact headrest, reduce the difference between occupant's neck amount of movement and the occupant's head amount of movement, reduce the risk of neck injury effectively; Meanwhile, consider the difference of each occupant's height, used headrest main panel 4 and headrest subpanel 5; after the triggering; headrest subpanel 5 flicks to existing together in the plane with headrest main panel 4, has enlarged the area of contact of occupant's head and neck, and giving widely, the crowd provides better protection.According to the needs of different automobile types, technical solutions according to the invention are divided into two kinds of Purely mechanical and electromechanicals again.
Consult Fig. 1, the automotive seat active safety head rest device of Purely mechanical of the present invention is made up of with triggering assembly 3 headrest assembly 1, interlock assembly 2.
Consult Fig. 2-a and Fig. 2-b, described headrest assembly 1 comprises headrest main panel 4,10, No. 2 hold down grooves 31 of headrest 9, No. 1 hold down groove of 8, No. 2 link rod sleeves of 7, No. 1 link rod sleeve of 32, No. 2 Swing Arms of 33, No. 1 Swing Arm of 6, No. 2 rack rods of 5, No. 1 rack rod of subpanel, sleeve connecting plate 11 and butterfly spring Self-locking hinge 12.Wherein: headrest main panel 4 is the identical in structure parts with rest the head on 5, No. 1 rack rod 6 of subpanel and 33, No. 1 Swing Arm 32 of No. 2 rack rods and 7, No. 1 link rod sleeve 8 of No. 2 Swing Arms and No. 2 link rod sleeves 9 and No. 1 hold down groove 10 and No. 2 hold down grooves 31.
Consult Fig. 2, headrest main panel 4 is the identical or similar framing member of structure with headrest subpanel 5, and headrest main panel 4 all is made up of exoperidium, frame-type skeleton and isocyanurate foam weighting material with headrest subpanel 5.The outside of exoperidium parcel frame-type skeleton and isocyanurate foam weighting material becomes and has certain elastomeric spatial structure part.Headrest main panel 4 is connected by butterfly spring Self-locking hinge 12 with headrest subpanel 5, and the frame-type skeletal fixation in promptly rest the head on main panel 4 and the subpanel 5 of resting the head on is in butterfly spring Self-locking hinge 12 on adjacent No. 1 hinge plate 39 and No. 2 hinge plates 40.
Consult Fig. 3, the bar class formation spare of the bending that described No. 1 rack rod 6 and No. 2 rack rods 33 are made for the identical employing corrosion-resistant steel of structure, No. 1 rack rod 6 and No. 2 rack rods 33 all are made up of upper end straight line pole, lower end straight line pole and two sections bows, the upper end straight line pole of No. 1 rack rod 6 and No. 2 rack rods 33 and lower end straight line pole are the straight line pole that is parallel to each other, adopt two sections bows slynesses to be connected between upper end straight line pole and the lower end straight line pole, the length of upper end straight line pole is less than the length of lower end straight line pole.
Consult Fig. 4, described No. 1 Swing Arm 32 is the identical plate structure spare of structure with No. 2 Swing Arms 7, one end of No. 1 Swing Arm 32 and No. 2 Swing Arms 7 is the hook formation spare equipped with No. 1 hold down groove 10 and No. 2 hold down grooves 31, the other end for the equipped T shape of headrest subpanel 5 member that hardens, adopt the mode captive joint of welding to be integral between the two.
Consult Fig. 5, described No. 1 hold down groove 10 is the identical tower structure spare of structure with No. 2 hold down grooves 31, and No. 1 hold down groove 10 and No. 2 hold down grooves 31 all are made up of the Swing Arm buckle 38 of 3 block plates and 1 cylinder rod-type.3 block plates connect into a font, the left side steel plate is identical with the right side steel plate structure, with vertical with middle steel plate and fuse, between steel plate and the right side steel plate, the central axis of Swing Arm buckle 38 was parallel with middle steel plate on the left of the left and right sides end face of Swing Arm buckle 38 was fixedly connected on.Space length between Swing Arm buckle 38 and the middle steel plate should be greater than the diameter value of No. 1 rack rod 6 or No. 2 rack rods 33, and its difference is 0.5～1cm.
Consult Fig. 6-a and Fig. 6-b, described butterfly spring Self-locking hinge 12 is a gauge member, and it is used to be generally dining table, can make square table become round table, increases the usable floor area of desk.In the present invention, be used for connecting headrest main panel 4 and headrest subpanel 5.
Butterfly spring Self-locking hinge 12 comprises 44, No. 3 hinge plate axles 45 of 43, No. 2 hinge plate axles of 42, No. 1 hinge plate axle of 41, No. 4 hinge plates of 40, No. 3 hinge plates of 39, No. 2 hinge plates of No. 1 hinge plate and No. 4 hinge plate axles 46 and self-locking spring.No. 1 hinge plate 39 and No. 2 hinge plates 40 are fixed on headrest main panel 4 and the headrest subpanel 5 by screw respectively.The right-hand member of No. 1 hinge plate 39 and No. 4 hinge plate axles 46 of bottom employing and the left end of No. 1 hinge plate axle 43 and No. 4 hinge plates 42 and the top of No. 2 hinge plates 40 are rotationally connected, the left end of No. 3 hinge plates 41 and No. 2 hinge plate axles 44 of top employing and the right-hand member of No. 3 hinge plate axles 45 and No. 2 hinge plates 40 and the bottom of No. 4 hinge plates 42 are rotationally connected, and all are set with self-locking spring on each axle.No. 1 hinge plate 39 and No. 4 hinge plates 42 can be rotated around No. 4 hinge plate axles 46, and No. 3 hinge plates 41 and No. 4 hinge plates 42 can be rotated around No. 3 hinge plate axles 45.Under the normal working, each hinge plate all is fitted on the pillow face, and promptly No. 1 hinge plate 39 and No. 4 hinge plates 42 are fitted on headrest main panel 4 or the headrest subpanel 5, and No. 2 hinge plates 40 and No. 3 hinge plates 41 are fitted on headrest subpanel 5 or the headrest main panel 4.When automobile generation rear-end impact, motion along with No. 1 rack rod 6 and No. 2 rack rods 33, owing to the moment movement differential, No. 1 Swing Arm 32 and No. 2 Swing Arms 7 break away from No. 1 hold down groove 10 and No. 2 hold down grooves 31, butterfly spring Self-locking hinge 12 is opened, under the effect of self-locking spring, No. 1 hinge plate 39 rotates and drives upwards upset of headrest subpanel 5 around No. 1 hinge plate axle 43, equally, under the effect that is set in the self-locking spring on each, No. 3 hinge plates 41 and No. 4 hinge plates 42 rotate 90 ° of angles, support headrest subpanel 5, make headrest subpanel 5 can not continue rotation under the effect of external force.
Consult Fig. 2-a and Fig. 2-b, headrest main panel 4 is connected by butterfly spring Self-locking hinge 12 with headrest subpanel 5, headrest main panel 4 is captiveed joint with the upper end of No. 2 rack rods 33 with No. 1 rack rod 6, the isocyanurate foam weighting material in the main panel 4 of promptly resting the head on be wrapped in No. 1 rack rod 6 become with the upper end of No. 2 rack rods 33 captive joint (technological process for earlier with the upper end of 6, No. 2 rack rods 33 of No. 1 rack rod and fixedly the skeleton of butterfly spring Self-locking hinge 12 put into mould, utilize isocyanurate foam to be full of mould then, superscribe exoperidium after the taking-up).Insert in No. 1 link rod sleeve 8 and No. 2 link rod sleeves 9 lower end of No. 1 rack rod 6 and No. 2 rack rods 33, No. 1 rack rod 6 is all tight frosted with No. 1 link rod sleeve 8 and No. 2 rack rods 33 with No. 2 link rod sleeves 9 and cooperates, when firmly pulling out or press No. 1 rack rod 6 and No. 2 rack rods 33, the elemental height of headrest adjustable main panel 4 and headrest subpanel 5.No. 1 hold down groove 10 and No. 2 hold down grooves 31 are sleeved on the lower end straight line pole of No. 1 rack rod 6 and No. 2 rack rods 33 and are in the same horizontal surface, promptly the lower end straight line pole of No. 1 rack rod 6 and No. 2 rack rods 33 inserts between left side steel plate, right side steel plate, middle steel plate and the Swing Arm buckle 38 of No. 1 hold down groove 10 and No. 2 hold down grooves 31, is to fix (welding or screw) to be connected between the lower end straight line pole of No. 1 rack rod 6 and No. 2 rack rods 33 and No. 1 hold down groove 10 and No. 2 hold down grooves 31.Swing Arm buckle 38 matched togethers on No. 1 Swing Arm 32 and No. 2 Swing Arm 7 one ends (hook end) and No. 1 hold down groove 10 and No. 2 hold down grooves 31, the other end (T font end) fixedly places in the isocyanurate foam of headrest subpanel 5.
In cruising, the hook of No. 1 Swing Arm 32 and No. 2 Swing Arm 7 one ends hangs on the Swing Arm buckle 38 on No. 1 hold down groove 10 and No. 2 hold down grooves 31, when knocking into the back, impulse force makes No. 1 hold down groove 10 and No. 2 hold down grooves 31 rise, Swing Arm buckle 38 on No. 1 hold down groove 10 and No. 2 hold down grooves 31 has broken away from the hook of No. 1 Swing Arm 32 and No. 2 Swing Arm 7 one ends, and the subpanel 5 of resting the head on this moment has broken away from constraint and opened under the effect of butterfly spring Self-locking hinge 12.
No. 1 link rod sleeve 8 and No. 2 link rod sleeves 9 are installed in the upper end of back of seat vertically, fuse by sleeve connecting plate 11 between No. 1 link rod sleeve 8 and No. 2 link rod sleeves 9, make that No. 1 link rod sleeve 8 is parallel with the diad of No. 2 link rod sleeves 9, and make link rod sleeve 8 No. 1, No. 2 link rod sleeves 9 and sleeve connecting plate 11 vertical coplanes, No. 1 link rod sleeve 8 and No. 2 link rod sleeves 9 freely move up and down at vertical direction under the driving of No. 1 ratchet 22 and No. 2 ratchets 36, and described vertical direction is meant link rod sleeve 8 No. 1, No. 2 link rod sleeves 9 and sleeve connecting plate 11 planes of living in and two ratchets plane parallel of living in.Sleeve connecting plate 11 is evenly equipped with the rectangular through hole that two and interlock No. 1 cylinder boss 37 in the assembly 2 and No. 2 cylinder boss 23 are equipped with.
Consult Fig. 7-a and Fig. 7-b, described triggering assembly 3 comprises 2 structure identical triggering mechanism connecting portions 13,16,2 swing arms that structure is identical 17 of slide-bar, 18,2 structure identical triggering plates of swing arm connecting rod support arm 19, trigger mechanism entablatrance 20 and triggering panel 21 that 15,2 structures of connecting rod cover are identical.
Trigger mechanism entablatrance 20 inserts in the through hole of 2 structure identical triggering mechanism connecting portions 13 and 2 structure identical triggering plate support arm 19 upper ends, the outside that 2 structure identical triggering mechanism connecting portions 13 are positioned at 2 structure identical triggering plate support arms 19 connects for contact, and 2 structure identical triggering mechanism connecting portions 13 are symmetrical arranged the two ends that promptly are in trigger mechanism entablatrance 20 with 2 structure identical triggering plate support arm 19 intermediate points with respect to trigger mechanism entablatrance 20 and locate.Between 2 structure identical triggering mechanism connecting portions 13 and the trigger mechanism entablatrance 20 is interference fit, between the upper end of 2 structure identical triggering plate support arms 19 and the trigger mechanism entablatrance 20 for being rotationally connected.Another (descending) of 2 structure identical triggering plate support arms 19 end is rotationally connected by an end of the identical slide-bar 16 of 2 structures swing arm 17 identical with 2 structures, the other end of the swing arm 17 that 2 structures are identical is sleeved on the swing arm connecting rod 18 that passes 2 structure identical triggering mechanism connecting portion 13 upper hopper chutes 14 to become to be rotationally connected, and each swing arm 17 all is between trigger board support arm 19 and the trigger mechanism connecting portion 13.Swing arm connecting rod 18 is set with connecting rod cover 15 and connects for interference fit in the right-hand member end in trigger mechanism connecting portion 13 outsides.Triggering panel 21 adopts screw or welding manner to cover on 2 structure identical triggering plate support arm 19 upper surfaces.Described triggering assembly 3 fixedly mounts on the seat by the lower end of 2 structure identical triggering mechanism connecting portions 13.
Consult Fig. 8-a and Fig. 8-b, described interlock assembly 2 comprises 37, No. 2 cylinder boss 23 of 36, No. 1 cylinder boss of 22, No. 2 ratchets of No. 1 ratchet, small boss 24, steel rope 26 and steel wire buckle 27.Wherein No. 1 ratchet 22 and No. 2 ratchets 36 and No. 1 cylinder boss 37 and No. 2 cylinder boss 23 are the identical parts of structure.
Described No. 1 ratchet 22 is the identical quadrant class formation spare of structure with No. 2 ratchets 36.One end of No. 1 ratchet 22 and No. 2 ratchets 36 is the fan-shaped part that peripheral end face is provided with engaging tooth, the inboard of No. 2 ratchet 36 engaging tooths is provided with small boss 24, the other end No. 1 cylinder boss 37 of fixed installation and No. 2 cylinder boss 23 of No. 1 ratchet 22 and No. 2 ratchets 36, the rotation axis of No. 1 cylinder boss 37 and No. 2 cylinder boss 23 and No. 1 ratchet 22 of plate structure spare are vertical with No. 2 ratchet 36 planes of living in, and the inboard of No. 1 cylinder boss 37 and No. 2 cylinder boss 23 is provided with No. 1 fixed orifice 34 and No. 2 fixed orifices 25.23, No. 2 fixed orifices of No. 2 cylinder boss 25 and small boss 24 are in together on vertical symmetric line by No. 2 ratchet 36 center of gyrations, and No. 1 cylinder boss 37 and No. 1 fixed orifice 34 are in together on vertical symmetric line by No. 1 ratchet 22 center of gyrations.
No. 1 ratchet 22 and No. 2 ratchets 36 are by No. 1 fixed orifice 34 and No. 2 fixed orifices 25 and adopt the bigger corrosion-resistant steel pin of intensity to be installed on the seat back-rest framework to being rotationally connected, between No. 1 ratchet 22 and No. 2 ratchets 36 for being connected with a joggle, No. 1 ratchet 22 and No. 2 ratchets 36 are wanted coplane, and No. 1 ratchet 22 becomes 15 ° of angles (No. 1 ratchet 22 and No. 2 ratchets 36 tilt to cushion direction direction) with No. 2 ratchet 36 residing planes with vertical plane surface.No. 1 ratchet 22 No. 1 cylinder boss 37 identical with 2 structures on No. 2 ratchets 36 and No. 2 cylinder boss 23 insert in the identical rectangular through hole of 2 structures on the headrest assemblies 1 middle sleeve connecting plate 11 and become rotation and sliding block joint.Small boss 24 on the upper end of steel rope 26 and No. 2 ratchets 36 is rotationally connected, and the other end that is fixedly connected with the steel rope 26 of steel wire buckle 27 is sleeved on and triggers in the assembly 3 on the swing arm connecting rod 18 to being rotationally connected.
The principle of work of the automotive seat active safety head rest device of Purely mechanical:
Consulting Fig. 9-a, is the initial condition of automotive seat active safety head rest device of the present invention among the figure.When automobile generation rear-end impact, the occupant is under action of inertia, the trunk extruding triggers panel 21, promoting 2 structure identical triggering plate support arms 19 rotates around trigger mechanism entablatrance 20 downward (conter clockwise), and then promoting the identical swing arms 17 of 2 structures around identical slide-bars 16 downward (cw) swing of 2 structures with move, swing arm 17 promotes swing arm connecting rods 18 and moves down along chute 14.Swing arm connecting rod 18 pulling steel ropes 26 are realized transmission power and motion, steel rope 26 rotates No. 2 ratchet 36 cws (No. 1 ratchet 22 conter clockwises) of its upper end captive joint, No. 2 ratchets 36 that are meshed and the rotation of No. 1 ratchet 22 make No. 2 cylinder boss 23 and No. 1 cylinder boss 37 drive No. 2 link rod sleeves 9 and No. 1 link rod sleeve 8 along No. 2 ratchets 36 and No. 1 ratchet 22 directions by sleeve connecting plate 11, promptly become 15 ° direction upwards to move forward rapidly with vertical direction, simultaneously, because moving rapidly and the headrest main panel 4 and the bonded assembly space between the subpanel 5 of resting the head on of No. 1 rack rod 6 and No. 2 rack rods 33, cause the movement differential of headrest main panel 4 and headrest subpanel 5, make hook on No. 1 Swing Arm 32 and No. 2 Swing Arms 7 break away from the Swing Arm buckle 38 on No. 1 hold down groove 10 and No. 2 hold down grooves 31, promptly the hook on No. 1 Swing Arm 32 has broken away from rack rod 6 No. 1, hook on No. 2 Swing Arms 7 has broken away from rack rod 33 No. 2, under the effect of butterfly spring Self-locking hinge 12, headrest subpanel 5 upwards launches, until with headrest main panel 4 isoplanars, increase the area of contact of headrest pillow face, consulted Fig. 9-c.At this moment, butterfly spring Self-locking hinge 12 lockings have limited moving of headrest subpanel 5, are the mode of operation of active safety headrest.Like this, occupant's head can contact the headrest of reach as soon as possible, has reduced the difference of amount of movement between head and the neck, has reduced the risk that cervical injuries takes place effectively.Simultaneously, the headrest area of contact farthest increases, and is applicable to the occupant of different sitting heights, and giving more widely, the crowd provides better protection.
The automotive seat active safety head rest device of electromechanical
Consult Figure 10, deficiency for the corresponding hysteresis of automotive seat active safety head rest device that remedies traditional Purely mechanical, adopt the structure of electromechanical, headrest assembly 1 in the automotive seat active safety head rest device of traditional Purely mechanical and No. 1 cylinder boss 37 in the interlock assembly 2 have been kept, No. 2 cylinder boss 23, the structure of No. 1 ratchet 22 and No. 2 ratchets 36 (being called as electronic ratchet 30 herein), increased motor 28, coupler 29 and automatically controlled part have been replaced triggering assembly 3 in the automotive seat active safety head rest device of traditional Purely mechanical and the steel rope 26 in the interlock assembly 2, steel wire buckle 27 and small boss 24.The information that the automotive seat active safety head rest device of electromechanical provides according to sensor is judged in advance and is started headrest assembly 1, thereby protects the safety of occupant's head and neck better.
The automotive seat active safety head rest device of described electromechanical is grouped into electric control part by 37, No. 2 cylinder boss 23 of headrest 1, No. 1 cylinder boss of assembly, motor 28,29, No. 1 ratchet 22 of coupler, electronic ratchet 30.
Consult Figure 11, the electric control part branch comprises road conditions sensor, afterbody range only radar, acceleration pick-up, occupant's head position transduser and Single-chip Controlling unit.
The structure of No. 2 ratchets 36 that adopted in the automotive seat active safety head rest device of the structure of described electronic ratchet 30 and Purely mechanical is identical.Automotive seat active safety head rest device is owing to adopted the structure of electromechanical, so the inboard of electronic ratchet 30 1 end engaging tooths no longer is provided with small boss 24, No. 2 cylinder boss 23 of other end fixed installation of electronic ratchet 30, electronic ratchet 30 planes of living in of the rotation axis of No. 2 cylinder boss 23 and plate structure spare are vertical, the center of gyration that the inboard of No. 2 cylinder boss 23 is provided with 25, No. 2 cylinder boss 23 of No. 2 fixed orifices and No. 2 fixed orifices 25 is in together on vertical symmetric line by electronic ratchet 30 center of gyrations.
The occupant's head position transduser is positioned at the automobile B-column top, can record the distance and the diff-H of headrest assembly 1 and head.Road conditions sensor (being that model is the acceleration pick-up of MMA72600T and the afterbody range laser radar that model is LLDAR) is positioned near the automobile tail car light, because automatically controlled part is not very complicated, can adopt a slice PIC micro controller system or model is that the micro controller system of C8051 is controlled processing; Motor 28 in the automatically controlled part can be regulated the horizontal displacement and the height displacement of headrest simultaneously, uses brshless DC motor, and this motor has not only kept the advantage of DC machine, and has the advantage such as simple in structure, reliable, easy to maintenance of alternating current dynamo again.
The principle of work of the automotive seat active safety head rest device of electromechanical:
Consult Figure 12, when automobile began to travel, the occupant's head position transduser was measured repeatedly, the distance and the diff-H of assembly 1 and head obtain behind the data handing resting the head on, motor 28 drives coupler 29 and rotates highly recompensing, and diff-H is in the optimum range, has improved the traveling comfort of seat.
When automobile possibly during rear-end impact, the road conditions sensor is repeatedly measured, and the preliminary hazard level of judging collision is to the horizontal displacement of headrest with highly carry out the adjusting first time; Automobile sends safe early warning, and the occupant makes corresponding reaction, and sitting posture is adjusted, and the result after control unit is accepted to measure again carries out the second time to headrest assembly 1 and regulates; When automobile generation rear-end impact, headrest subpanel 5 is opened, and headrest main panel 4 has been adjusted to headrest subpanel 5 as far as possible occupant's cervical injuries is reduced in the minimum scope, effectively protects occupant's head, neck safety; After collision finished, motor reversed, and return the distance of compensation, guaranteed that the occupant can obtain comfortable rest.
Automotive seat active safety head rest device can be regarded headrest assembly 1 self-checking device as, does not ignore the height adjustment function of tradition headrest assembly 1; Headrest assembly 1 all is in the optimum range with the distance and the diff-H of head constantly, so automotive seat active safety head rest device is reliable; Simultaneously, automotive seat active safety head rest device can be accomplished to vary with each individual, so protection effect is stable relatively good.
Claims (7)
1. automotive seat active safety head rest device, comprise headrest assembly (1), interlock assembly (2) and trigger assembly (3), it is characterized in that described headrest assembly (1) comprises headrest main panel (4), headrest subpanel (5), No. 1 rack rod (6), No. 2 Swing Arms (7), No. 1 link rod sleeve (8), No. 2 link rod sleeves (9), No. 1 hold down groove (10), sleeve connecting plate (11), butterfly spring Self-locking hinge (12), No. 2 hold down grooves (31), No. 1 Swing Arm (32) and No. 2 rack rods (33);
Headrest main panel (4) is connected by butterfly spring Self-locking hinge (12) with headrest subpanel (5), headrest main panel (4) is captiveed joint with the upper end of No. 2 rack rods (33) with No. 1 rack rod (6), No. 1 rack rod (6) inserts in No. 1 link rod sleeve (8) and No. 2 link rod sleeves (9) with the lower end of No. 2 rack rods (33), No. 1 rack rod (6) is all with No. 2 link rod sleeves (9) with No. 1 link rod sleeve (8) and No. 2 rack rods (33) and closely cooperates, No. 1 hold down groove (10) and No. 2 hold down grooves (31) are sleeved on the straight line pole of No. 1 rack rod (6) and No. 2 rack rods (33) lower end and are in the same horizontal surface, between the lower end straight line pole of No. 1 rack rod (6) and No. 2 rack rods (33) and No. 1 hold down groove (10) and No. 2 hold down grooves (31) for captiveing joint, No. 1 Swing Arm (32) and the hook end of No. 2 Swing Arms (7) and Swing Arm buckle (38) matched together on No. 1 hold down groove (10) and No. 2 hold down grooves (31), the other end is captiveed joint with headrest subpanel (5), No. 1 link rod sleeve (8) and No. 2 link rod sleeves (9) are installed in the upper end of back of seat vertically, are captiveed joint by sleeve connecting plate (11) between No. 1 link rod sleeve (8) and No. 2 link rod sleeves (9).
2. according to the described automotive seat active safety of claim 1 head rest device, it is characterized in that, described No. 1 rack rod (6) is the bar class formation spare that the identical employing corrosion-resistant steel of structure is made with No. 2 rack rods (33), and No. 1 rack rod (6) all is made up of upper end straight line pole, lower end straight line pole and two sections bows with No. 2 rack rods (33);
No. 1 rack rod (6) is the straight line pole that is parallel to each other with the upper end straight line pole and the lower end straight line pole of No. 2 rack rods (33), adopt two sections bows slynesses to be connected between upper end straight line pole and the lower end straight line pole, the length of upper end straight line pole is less than the length of lower end straight line pole.
3. according to the described automotive seat active safety of claim 1 head rest device, it is characterized in that, described No. 1 Swing Arm (32) is the identical plate structure spare of structure with No. 2 Swing Arms (7), No. 1 Swing Arm (32) with an end of No. 2 Swing Arms (7) is and No. 1 hold down groove (10) and the equipped hook formation spare of No. 2 hold down grooves (31), the other end of No. 1 Swing Arm (32) and No. 2 Swing Arms (7) for the equipped T shape of headrest subpanel (5) member that hardens, hook formation spare hardens to captive joint between the member with T shape and is integral.
4. according to the described automotive seat active safety of claim 1 head rest device, it is characterized in that, described No. 1 hold down groove (10) is the identical part of structure with No. 2 hold down grooves (31), and No. 1 hold down groove (10) all is made up of 3 block plates and Swing Arm buckle (38) with No. 2 hold down grooves (31);
3 block plates connect into the framing member of a font, the left side steel plate is identical with the right side steel plate structure, with with middle steel plate vertical also captive joint be integral, Swing Arm buckle (38) is fixed between left side steel plate and the right side steel plate, Swing Arm buckle (38) central axis is parallel with middle steel plate, and the distance between Swing Arm buckle (38) and the middle steel plate is greater than the diameter value of No. 1 rack rod (6) or No. 2 rack rods (33).
5. according to the described automotive seat active safety of claim 1 head rest device, it is characterized in that described headrest main panel (4) all is made up of exoperidium, frame-type skeleton and isocyanurate foam weighting material with headrest subpanel (5);
The outside that exoperidium is wrapped in frame-type skeleton and isocyanurate foam weighting material becomes and has certain elastomeric spatial structure part, headrest main panel (4) is connected by butterfly spring Self-locking hinge (12) with frame-type skeleton in headrest subpanel (5), and the main panel of promptly resting the head on (4) is connected on No. 1 hinge plate (39) adjacent in the butterfly spring Self-locking hinge (12) and No. 2 hinge plates (40) with frame-type skeleton employing screw retention in the headrest subpanel (5).
6. according to the described automotive seat active safety of claim 1 head rest device, it is characterized in that described interlock assembly (2) comprises No. 1 ratchet (22), No. 2 ratchets (36), No. 1 cylinder boss (37), No. 2 cylinder boss (23) and small boss (24);
No. 1 ratchet (22) is installed on the seat back-rest framework to being rotationally connected by No. 1 fixed orifice (34) and No. 2 fixed orifices (25) with No. 2 ratchets (36), between No. 1 ratchet (22) and No. 2 ratchets (36) for being connected with a joggle, No. 1 ratchet (22) becomes 15 ° of angles with No. 2 ratchets (36) coplane and with vertical plane surface, No. 1 cylinder boss (37) and No. 2 cylinder boss (23) are installed in the outside of No. 1 fixed orifice (34) and No. 2 fixed orifices (25), the identical rectangular through hole of 2 structures on the sleeve connecting plate (11) in No. 1 cylinder boss (37) and No. 2 cylinder boss (23) and the headrest assembly (1) is for rotating and sliding block joint, small boss (24) is installed in the inboard of No. 2 ratchets (36) engaging tooth, the upper end of small boss (24) and steel rope (26) is rotationally connected, the lower end of steel rope (26) by the swing arm connecting rod (18) in steel wire buckle (27) and the triggering assembly (3) for being rotationally connected.
7. the automotive seat active safety head rest device of an electromechanical, it is characterized in that the automotive seat active safety head rest device of described electromechanical comprises headrest assembly (1), No. 1 ratchet (22), No. 2 cylinder boss (23), motor (28), coupler (29), electronic ratchet (30) and No. 1 cylinder boss (37);
Motor (28) is fixed on the backrest of seat, the mouth of motor (28) is captiveed joint with coupler (29) input end, coupler (29) mouth is connected with No. 2 fixed orifices (25) running-fit on the electronic ratchet (30), between electronic ratchet (30) and No. 1 ratchet (22) for being connected with a joggle, No. 2 cylinder boss (23) and No. 1 cylinder boss (37) are installed in the outside of No. 2 fixed orifices (25) and No. 1 fixed orifice (34), and the rectangular through hole that 2 structures on the sleeve connecting plate (11) in No. 2 cylinder boss (23) and No. 1 cylinder boss (37) and the headrest assembly (1) are identical is rotation and sliding block joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110284488 CN102285325A (en) | 2011-09-23 | 2011-09-23 | Active safe headrest device of automobile chair |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110284488 CN102285325A (en) | 2011-09-23 | 2011-09-23 | Active safe headrest device of automobile chair |
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| CN102285325A true CN102285325A (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110284488 Pending CN102285325A (en) | 2011-09-23 | 2011-09-23 | Active safe headrest device of automobile chair |
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| CN102887089A (en) * | 2012-09-17 | 2013-01-23 | 吉林省汽车零部件研发中心有限公司 | Active safe headrest device for car seat |
| CN103101464A (en) * | 2013-02-01 | 2013-05-15 | 长沙立中汽车设计开发有限公司 | Active safe headrest device |
| CN103273861A (en) * | 2013-05-29 | 2013-09-04 | 江苏大学 | Motor vehicle front collision safety seat |
| CN107719385A (en) * | 2017-10-11 | 2018-02-23 | 长治市潞安合力机械有限责任公司 | A kind of monkey car seat with backrest |
| CN109941172A (en) * | 2019-04-10 | 2019-06-28 | 吉利汽车研究院（宁波）有限公司 | Automotive seat and vehicle with headrest adjustable mechanism |
| CN111516577A (en) * | 2019-02-05 | 2020-08-11 | 温泽机械和制模(2009)有限责任公司 | Power actuated reclining headrest assembly and method of automatic deployment thereof |
| CN114466636A (en) * | 2019-09-26 | 2022-05-10 | 普兰梅卡有限公司 | Adjusting mechanism of therapeutic chair headrest |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102887089A (en) * | 2012-09-17 | 2013-01-23 | 吉林省汽车零部件研发中心有限公司 | Active safe headrest device for car seat |
| CN102887089B (en) * | 2012-09-17 | 2015-05-20 | 吉林省汽车零部件研发中心有限公司 | Active safe headrest device for car seat |
| CN103101464A (en) * | 2013-02-01 | 2013-05-15 | 长沙立中汽车设计开发有限公司 | Active safe headrest device |
| CN103101464B (en) * | 2013-02-01 | 2015-11-18 | 江苏百立汽车科技有限公司 | A kind of active safe headrest device |
| CN103273861A (en) * | 2013-05-29 | 2013-09-04 | 江苏大学 | Motor vehicle front collision safety seat |
| CN107719385A (en) * | 2017-10-11 | 2018-02-23 | 长治市潞安合力机械有限责任公司 | A kind of monkey car seat with backrest |
| CN111516577A (en) * | 2019-02-05 | 2020-08-11 | 温泽机械和制模(2009)有限责任公司 | Power actuated reclining headrest assembly and method of automatic deployment thereof |
| CN109941172A (en) * | 2019-04-10 | 2019-06-28 | 吉利汽车研究院（宁波）有限公司 | Automotive seat and vehicle with headrest adjustable mechanism |
| CN109941172B (en) * | 2019-04-10 | 2021-04-27 | 吉利汽车研究院（宁波）有限公司 | Automobile seat with adjustable headrest mechanism and vehicle |
| CN114466636A (en) * | 2019-09-26 | 2022-05-10 | 普兰梅卡有限公司 | Adjusting mechanism of therapeutic chair headrest |
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Application publication date: 20111221 |